home.md

@@ -23,6 +23,7 @@ Besides here at the Social.coop wiki, you can find us at the following places:
 - Our [Open Collective] page, where we raise funds: [opencollective.com/socialcoop](https://opencollective.com/socialcoop)
 - Our [May First](May-First) organizational membership which provides additional services to members.
 
+[Mastodon]: https://en.wikipedia.org/wiki/Mastodon_(software)
 [Loomio]: https://en.wikipedia.org/wiki/Loomio
 [GitLab]: https://en.wikipedia.org/wiki/GitLab
 [Matrix]: https://en.wikipedia.org/wiki/Matrix_(protocol)